Balancing: independent speed adjustment of either supply or exhaust motor in BOTH high and low speed

24V circuit protection with self resetting fuse

Drain, hanger kit, polyester air filters included

12 VDC 24V remote control options

Defrost: When outdoor temperature falls to 5 C (23 F), an automatic timed defrost cycle is initiated. The fresh air motor will go to high speed and the exhaust air motor will turn off. A damper will shut off the cold supply port, directing ambient air through the core for defrosting.The unit will resume normal operation for a fixed duration, then the processor will read outdoor temperature and initiate defrost as necessary. Defrost varies with outdoor temperature.

This product earned the ENERGY STAR by meeting strict enegy efficiency guidelines set by Natural Resources Canada and the US EPA. It meets ENERGY STAR requirements only when used in Canada.